In a certain school, the lesson periods for each week are as itemised below: English 10, Mathematics 7, Biology 3, Statistics 4, Ibo 3, others 9. Draw a pie chart to illustrate this information.
Explanation
| Subject | Period | Angle of sector in pie chart |
| English | 10 | \(\frac{10}{36} \times 360° = 100°\) |
| Mathematics | 7 | \(\frac{7}{36} \times 360° = 70°\) |
| Biology | 3 | \(\frac{3}{36} \times 360° = 30°\) |
| Statistics | 4 | \(\frac{4}{36} \times 360° = 40°\) |
| Igbo | 3 | \(\frac{3}{36} \times 360° = 30°\) |
| Others | 9 | \(\frac{9}{36} \times 360° = 90°\) |
| Total | 36 | 360° |
